Carl Zimmer

Environment

Move Over Blood Type, Gut Bacteria Is Here

New research shows that there are three distinct ecosystems in people's guts that could have direct effects of people's heath. We talk with Carl Zimmer, science reporter for our partner The New York Times, who reported on this story in yesterday's paper.

Environment

Scientists crack a smile

Why do we smile? Not only do scientists believe they may have discovered the answer to that question, but also to how we perceive the smile. Carl Zimmer, science writer for The New York Times, has the details of this new study.

Environment

The Secret (Love) Life of Fireflies

The apparent serenity of fireflies is actually full of murder, deception, and secret trysts as they communicate with each other and try to mate. Joining The Takeaway with more on the passionate life of the firefly is science writer Carl Zimmer.